{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-80579 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-80579 is a high-severity use after free vulnerability in Linux, published on 26 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-80579 and fix it if it is affected.\n\nWhat it is: CVE-2026-80579 is a high-severity use after free vulnerability in Linux, published on 26 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-80579 in the wild and no public exploit code.\n\nAffected product: Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-80579/ (Markdown: https://insights.sbomify.com/CVE-2026-80579/index.md)","id":"CVE-2026-80579","markdown":"https://insights.sbomify.com/CVE-2026-80579/index.md","name":"CVE-2026-80579","record":{"aliases":["AZL-97716","BELL-CVE-2026-80579","DEBIAN-CVE-2026-80579","GHSA-ppqm-p5h9-4x92","UBUNTU-CVE-2026-80579"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A use-after-free vulnerability in the Linux kernel fbdev subsystem allows attackers to cause denial of service or potentially execute code via stale pointer dereference.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: clear fb_info-\u003emode before deleting a videomode\n\nfb_set_var() can delete a mode from info-\u003emodelist when userspace\npasses FB_ACTIVATE_INV_MODE through FBIOPUT_VSCREENINFO. The code\nchecks that the mode being deleted is not the current info-\u003evar and\nthat fbcon is not using it, but it does not check fb_info-\u003emode.\n\nfb_info-\u003emode may still point into the modelist entry being deleted.\nIf the entry is freed, later mode sysfs reads through show_mode() can\ndereference a stale pointer.\n\nClear fb_info-\u003emode before calling fb_delete_videomode() when it\nmatches the mode being removed.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"fbdev: clear fb_info-\u003emode before deleting a videomode","id":"CVE-2026-80579","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"fbdev: bound mode sysfs output to the sysfs buffer","id":"CVE-2026-80580"},"packages":[],"prev":{"headline":"fbdev: core: Fix pointer desynchronization in fb_io_read()","id":"CVE-2026-80578"},"products":["Linux"],"published":"2026-08-26","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-16","vendors":["Linux"]},"summary":"A use-after-free vulnerability in the Linux kernel fbdev subsystem allows attackers to cause denial of service or potentially execute code via stale pointer dereference.","url":"https://insights.sbomify.com/CVE-2026-80579/"}